@Dave, a benefit of reaching 200 in rep is reduced advertising. Your SO account is above this threshold. Also note that since this answer was provided, SE has secured venture capital, so there are more resources than just advertisements at work.
– Anthony PegramNov 4 '11 at 18:15

In software, a stack overflow occurs when too much memory is used on the call stack. In many programming languages, the call stack contains a limited amount of memory, usually determined at the start of the program. The size of the call stack depends on many factors, including the programming language, machine architecture, multi-threading, and amount of available memory. When too much memory is used on the call stack the stack is said to overflow; typically resulting in a program crash. This class of software bug is usually caused by one of two types of programming errors.